<!DOCTYPE html>
<html lang="zh-cn">
<head>
    <meta charset="UTF-8">
    <title></title>
</head>
<body>
    <canvas id="dialog" style="width:400px;height:225px;">
        <label id="dialog_title" >Dialog</label>
        <label id="dialog_text" ></label>
        <button id="dialog_btn1"></button>
        <button id="dialog_btn2"></button>
        <button id="dialog_btn3"></button>
    </canvas>
    <div id="list" style="width:300px;height:533px;">
        <canvas id="list_item"></canvas>
    </div>
</body>
</html>